java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec9_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:13:59,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:13:59,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:13:59,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:13:59,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:13:59,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:13:59,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:13:59,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:13:59,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:13:59,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:13:59,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:13:59,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:13:59,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:13:59,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:13:59,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:13:59,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:13:59,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:13:59,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:13:59,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:13:59,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:13:59,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:13:59,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:13:59,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:13:59,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:13:59,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:13:59,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:13:59,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:13:59,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:13:59,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:13:59,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:13:59,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:13:59,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:13:59,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:13:59,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:13:59,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:13:59,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:13:59,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:13:59,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:13:59,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:13:59,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:13:59,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:13:59,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:13:59,277 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:13:59,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:13:59,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:13:59,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:13:59,281 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:13:59,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:13:59,282 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:13:59,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:13:59,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:13:59,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:13:59,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:13:59,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:13:59,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:13:59,285 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:13:59,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:13:59,286 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:13:59,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:13:59,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:13:59,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:13:59,287 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:13:59,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:13:59,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:13:59,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:13:59,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:13:59,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:13:59,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:13:59,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:13:59,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:13:59,290 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:13:59,570 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:13:59,582 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:13:59,586 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:13:59,587 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:13:59,588 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:13:59,588 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_productSimulator.cil.c [2019-10-13 23:13:59,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6b51a69c/f7171c776c7643d487fae1833d6a7a3a/FLAG7df03d203 [2019-10-13 23:14:00,244 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:14:00,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_productSimulator.cil.c [2019-10-13 23:14:00,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6b51a69c/f7171c776c7643d487fae1833d6a7a3a/FLAG7df03d203 [2019-10-13 23:14:00,477 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6b51a69c/f7171c776c7643d487fae1833d6a7a3a [2019-10-13 23:14:00,487 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:14:00,489 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:14:00,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:14:00,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:14:00,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:14:00,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:14:00" (1/1) ... [2019-10-13 23:14:00,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@759a7100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:00, skipping insertion in model container [2019-10-13 23:14:00,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:14:00" (1/1) ... [2019-10-13 23:14:00,503 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:14:00,593 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:14:01,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:14:01,398 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:14:01,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:14:01,787 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:14:01,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:01 WrapperNode [2019-10-13 23:14:01,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:14:01,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:14:01,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:14:01,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:14:01,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:01" (1/1) ... [2019-10-13 23:14:01,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:01" (1/1) ... [2019-10-13 23:14:01,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:01" (1/1) ... [2019-10-13 23:14:01,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:01" (1/1) ... [2019-10-13 23:14:01,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:01" (1/1) ... [2019-10-13 23:14:01,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:01" (1/1) ... [2019-10-13 23:14:02,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:01" (1/1) ... [2019-10-13 23:14:02,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:14:02,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:14:02,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:14:02,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:14:02,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:14:02,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:14:02,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:14:02,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:14:02,119 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:14:02,120 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:14:02,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:14:02,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:14:02,122 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:14:02,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:14:02,123 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:14:02,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:14:02,124 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:14:02,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:14:02,124 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:14:02,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:14:02,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:14:02,127 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:14:02,127 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:14:02,127 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:14:02,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:14:02,128 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:14:02,128 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:14:02,128 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:14:02,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:14:02,129 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:14:02,129 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:14:02,129 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-10-13 23:14:02,129 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-10-13 23:14:02,130 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-10-13 23:14:02,130 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-10-13 23:14:02,130 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-10-13 23:14:02,130 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-10-13 23:14:02,130 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:14:02,131 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:14:02,131 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-10-13 23:14:02,152 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-10-13 23:14:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-10-13 23:14:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-10-13 23:14:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-10-13 23:14:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-10-13 23:14:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-10-13 23:14:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-10-13 23:14:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:14:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:14:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:14:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:14:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:14:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:14:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:14:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:14:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:14:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:14:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:14:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:14:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:14:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:14:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-10-13 23:14:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-10-13 23:14:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:14:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-10-13 23:14:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-10-13 23:14:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:14:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-10-13 23:14:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-10-13 23:14:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:14:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:14:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:14:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:14:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:14:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:14:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:14:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:14:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:14:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:14:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:14:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:14:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:14:02,161 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:14:02,161 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:14:02,161 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:14:02,162 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:14:02,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:14:02,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:14:02,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:14:02,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:14:02,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:14:02,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:14:02,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:14:02,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 23:14:02,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 23:14:02,164 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:14:02,164 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:14:02,164 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:14:02,164 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:14:02,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-10-13 23:14:02,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-10-13 23:14:02,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-10-13 23:14:02,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-10-13 23:14:02,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-10-13 23:14:02,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-10-13 23:14:02,166 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:14:02,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-10-13 23:14:02,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-10-13 23:14:02,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:14:02,166 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:14:02,166 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:14:02,166 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:14:02,167 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:14:02,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:14:02,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:14:02,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:14:02,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:14:02,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:14:02,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:14:02,168 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:14:02,168 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:14:02,168 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:14:02,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:14:02,169 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:14:02,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:14:02,170 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:14:02,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:14:02,170 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:14:02,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:14:02,171 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:14:02,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:14:02,172 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:14:02,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:14:02,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:14:02,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:14:02,172 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:14:02,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:14:02,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:14:02,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:14:02,177 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:14:02,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:14:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:14:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:14:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:14:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:14:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:14:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:14:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:14:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:14:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:14:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:14:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:14:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:14:02,187 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:14:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:14:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:14:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:14:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:14:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:14:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:14:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:14:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:14:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:14:02,190 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:14:02,190 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:14:02,190 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:14:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:14:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:14:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:14:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:14:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:14:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:14:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:14:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:14:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:14:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:14:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:14:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:14:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:14:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:14:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:14:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:14:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:14:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:14:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:14:02,193 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:14:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:14:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:14:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:14:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:14:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:14:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:14:02,195 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:14:02,195 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:14:02,195 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:14:02,195 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:14:02,195 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:14:02,196 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:14:02,196 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:14:02,196 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:14:02,196 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:14:02,196 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:14:02,196 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:14:02,196 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:14:02,196 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:14:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:14:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:14:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 23:14:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:14:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-10-13 23:14:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-10-13 23:14:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-10-13 23:14:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-10-13 23:14:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-10-13 23:14:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-10-13 23:14:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-10-13 23:14:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-10-13 23:14:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-10-13 23:14:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-10-13 23:14:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-10-13 23:14:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-10-13 23:14:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-10-13 23:14:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-10-13 23:14:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 23:14:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:14:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:14:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:14:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:14:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:14:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:14:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:14:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:14:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:14:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:14:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:14:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:14:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:14:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:14:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:14:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:14:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:14:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:14:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:14:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:14:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:14:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:14:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-10-13 23:14:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-10-13 23:14:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-10-13 23:14:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-10-13 23:14:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-10-13 23:14:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-10-13 23:14:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:14:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:14:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:14:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:14:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:14:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:14:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:14:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:14:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:14:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:14:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:14:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:14:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:14:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:14:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:14:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:14:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:14:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:14:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:14:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-10-13 23:14:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-10-13 23:14:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-10-13 23:14:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-10-13 23:14:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-10-13 23:14:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-10-13 23:14:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-10-13 23:14:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-10-13 23:14:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:14:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:14:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:14:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:14:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:14:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:14:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:14:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:14:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:14:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:14:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:14:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:14:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:14:07,044 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:14:07,044 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:14:07,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:14:07 BoogieIcfgContainer [2019-10-13 23:14:07,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:14:07,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:14:07,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:14:07,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:14:07,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:14:00" (1/3) ... [2019-10-13 23:14:07,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61cd8ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:14:07, skipping insertion in model container [2019-10-13 23:14:07,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:01" (2/3) ... [2019-10-13 23:14:07,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61cd8ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:14:07, skipping insertion in model container [2019-10-13 23:14:07,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:14:07" (3/3) ... [2019-10-13 23:14:07,056 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_productSimulator.cil.c [2019-10-13 23:14:07,067 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:14:07,077 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:14:07,091 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:14:07,136 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:14:07,136 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:14:07,136 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:14:07,136 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:14:07,136 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:14:07,137 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:14:07,137 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:14:07,137 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:14:07,187 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states. [2019-10-13 23:14:07,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-13 23:14:07,210 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:07,212 INFO L380 BasicCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:07,214 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:07,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:07,220 INFO L82 PathProgramCache]: Analyzing trace with hash -51310916, now seen corresponding path program 1 times [2019-10-13 23:14:07,230 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:07,231 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980485619] [2019-10-13 23:14:07,231 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:07,231 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:07,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:07,956 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-13 23:14:07,957 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980485619] [2019-10-13 23:14:07,958 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:07,958 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:14:07,959 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381253786] [2019-10-13 23:14:07,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:14:07,966 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:07,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:14:07,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:14:07,984 INFO L87 Difference]: Start difference. First operand 610 states. Second operand 6 states. [2019-10-13 23:14:08,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:08,209 INFO L93 Difference]: Finished difference Result 1142 states and 1432 transitions. [2019-10-13 23:14:08,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:14:08,211 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2019-10-13 23:14:08,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:08,252 INFO L225 Difference]: With dead ends: 1142 [2019-10-13 23:14:08,252 INFO L226 Difference]: Without dead ends: 583 [2019-10-13 23:14:08,261 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:14:08,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-10-13 23:14:08,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 583. [2019-10-13 23:14:08,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2019-10-13 23:14:08,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 718 transitions. [2019-10-13 23:14:08,368 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 718 transitions. Word has length 140 [2019-10-13 23:14:08,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:08,370 INFO L462 AbstractCegarLoop]: Abstraction has 583 states and 718 transitions. [2019-10-13 23:14:08,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:14:08,371 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 718 transitions. [2019-10-13 23:14:08,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 23:14:08,377 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:08,377 INFO L380 BasicCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:08,377 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:08,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:08,378 INFO L82 PathProgramCache]: Analyzing trace with hash -910751636, now seen corresponding path program 1 times [2019-10-13 23:14:08,378 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:08,378 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719666526] [2019-10-13 23:14:08,378 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:08,379 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:08,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:08,647 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-13 23:14:08,648 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719666526] [2019-10-13 23:14:08,648 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:08,648 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:14:08,649 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220228056] [2019-10-13 23:14:08,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:14:08,651 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:08,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:14:08,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:14:08,652 INFO L87 Difference]: Start difference. First operand 583 states and 718 transitions. Second operand 4 states. [2019-10-13 23:14:09,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:09,576 INFO L93 Difference]: Finished difference Result 1132 states and 1424 transitions. [2019-10-13 23:14:09,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 23:14:09,577 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 146 [2019-10-13 23:14:09,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:09,582 INFO L225 Difference]: With dead ends: 1132 [2019-10-13 23:14:09,582 INFO L226 Difference]: Without dead ends: 581 [2019-10-13 23:14:09,585 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:14:09,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2019-10-13 23:14:09,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 581. [2019-10-13 23:14:09,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2019-10-13 23:14:09,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 707 transitions. [2019-10-13 23:14:09,629 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 707 transitions. Word has length 146 [2019-10-13 23:14:09,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:09,630 INFO L462 AbstractCegarLoop]: Abstraction has 581 states and 707 transitions. [2019-10-13 23:14:09,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:14:09,630 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 707 transitions. [2019-10-13 23:14:09,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-13 23:14:09,634 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:09,634 INFO L380 BasicCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:09,634 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:09,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:09,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1396711102, now seen corresponding path program 1 times [2019-10-13 23:14:09,635 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:09,635 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590452019] [2019-10-13 23:14:09,635 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:09,635 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:09,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:09,796 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-13 23:14:09,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590452019] [2019-10-13 23:14:09,796 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:09,797 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:14:09,797 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505021301] [2019-10-13 23:14:09,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:14:09,798 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:09,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:14:09,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:09,799 INFO L87 Difference]: Start difference. First operand 581 states and 707 transitions. Second operand 3 states. [2019-10-13 23:14:09,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:09,994 INFO L93 Difference]: Finished difference Result 1125 states and 1383 transitions. [2019-10-13 23:14:09,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:14:09,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-13 23:14:09,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:10,000 INFO L225 Difference]: With dead ends: 1125 [2019-10-13 23:14:10,000 INFO L226 Difference]: Without dead ends: 580 [2019-10-13 23:14:10,002 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:10,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2019-10-13 23:14:10,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2019-10-13 23:14:10,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-10-13 23:14:10,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 703 transitions. [2019-10-13 23:14:10,039 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 703 transitions. Word has length 159 [2019-10-13 23:14:10,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:10,040 INFO L462 AbstractCegarLoop]: Abstraction has 580 states and 703 transitions. [2019-10-13 23:14:10,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:14:10,040 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 703 transitions. [2019-10-13 23:14:10,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-13 23:14:10,044 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:10,044 INFO L380 BasicCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:10,044 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:10,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:10,045 INFO L82 PathProgramCache]: Analyzing trace with hash 523219015, now seen corresponding path program 1 times [2019-10-13 23:14:10,045 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:10,045 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696843512] [2019-10-13 23:14:10,045 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:10,046 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:10,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-13 23:14:10,205 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696843512] [2019-10-13 23:14:10,205 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:10,205 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:14:10,205 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904311887] [2019-10-13 23:14:10,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:14:10,207 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:10,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:14:10,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:14:10,208 INFO L87 Difference]: Start difference. First operand 580 states and 703 transitions. Second operand 4 states. [2019-10-13 23:14:11,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:11,136 INFO L93 Difference]: Finished difference Result 1097 states and 1330 transitions. [2019-10-13 23:14:11,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 23:14:11,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2019-10-13 23:14:11,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:11,141 INFO L225 Difference]: With dead ends: 1097 [2019-10-13 23:14:11,141 INFO L226 Difference]: Without dead ends: 577 [2019-10-13 23:14:11,143 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:14:11,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2019-10-13 23:14:11,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2019-10-13 23:14:11,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-10-13 23:14:11,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 686 transitions. [2019-10-13 23:14:11,175 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 686 transitions. Word has length 160 [2019-10-13 23:14:11,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:11,176 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 686 transitions. [2019-10-13 23:14:11,176 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:14:11,176 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 686 transitions. [2019-10-13 23:14:11,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-13 23:14:11,180 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:11,181 INFO L380 BasicCegarLoop]: trace histogram [8, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:11,181 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:11,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:11,181 INFO L82 PathProgramCache]: Analyzing trace with hash 175115770, now seen corresponding path program 1 times [2019-10-13 23:14:11,182 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:11,182 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083923330] [2019-10-13 23:14:11,182 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:11,182 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:11,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:11,392 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-10-13 23:14:11,393 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083923330] [2019-10-13 23:14:11,393 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:11,393 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:14:11,394 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480620029] [2019-10-13 23:14:11,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:14:11,394 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:11,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:14:11,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:11,395 INFO L87 Difference]: Start difference. First operand 577 states and 686 transitions. Second operand 3 states. [2019-10-13 23:14:11,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:11,434 INFO L93 Difference]: Finished difference Result 909 states and 1074 transitions. [2019-10-13 23:14:11,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:14:11,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-10-13 23:14:11,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:11,439 INFO L225 Difference]: With dead ends: 909 [2019-10-13 23:14:11,439 INFO L226 Difference]: Without dead ends: 579 [2019-10-13 23:14:11,441 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:11,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2019-10-13 23:14:11,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2019-10-13 23:14:11,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2019-10-13 23:14:11,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 688 transitions. [2019-10-13 23:14:11,473 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 688 transitions. Word has length 181 [2019-10-13 23:14:11,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:11,474 INFO L462 AbstractCegarLoop]: Abstraction has 579 states and 688 transitions. [2019-10-13 23:14:11,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:14:11,474 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 688 transitions. [2019-10-13 23:14:11,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-13 23:14:11,478 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:11,478 INFO L380 BasicCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:11,478 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:11,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:11,479 INFO L82 PathProgramCache]: Analyzing trace with hash -788599818, now seen corresponding path program 1 times [2019-10-13 23:14:11,479 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:11,479 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002440196] [2019-10-13 23:14:11,479 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:11,480 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:11,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:11,730 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-10-13 23:14:11,730 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002440196] [2019-10-13 23:14:11,730 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:11,730 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:14:11,731 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187821409] [2019-10-13 23:14:11,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:14:11,731 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:11,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:14:11,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:11,732 INFO L87 Difference]: Start difference. First operand 579 states and 688 transitions. Second operand 3 states. [2019-10-13 23:14:11,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:11,774 INFO L93 Difference]: Finished difference Result 1106 states and 1345 transitions. [2019-10-13 23:14:11,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:14:11,774 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2019-10-13 23:14:11,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:11,779 INFO L225 Difference]: With dead ends: 1106 [2019-10-13 23:14:11,779 INFO L226 Difference]: Without dead ends: 633 [2019-10-13 23:14:11,781 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:11,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2019-10-13 23:14:11,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 632. [2019-10-13 23:14:11,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2019-10-13 23:14:11,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 775 transitions. [2019-10-13 23:14:11,816 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 775 transitions. Word has length 188 [2019-10-13 23:14:11,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:11,817 INFO L462 AbstractCegarLoop]: Abstraction has 632 states and 775 transitions. [2019-10-13 23:14:11,817 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:14:11,818 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 775 transitions. [2019-10-13 23:14:11,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-13 23:14:11,821 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:11,821 INFO L380 BasicCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:11,821 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:11,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:11,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1088119219, now seen corresponding path program 1 times [2019-10-13 23:14:11,822 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:11,822 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473553443] [2019-10-13 23:14:11,822 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:11,822 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:11,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:12,055 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-13 23:14:12,056 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473553443] [2019-10-13 23:14:12,056 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:12,056 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:14:12,057 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494446576] [2019-10-13 23:14:12,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:14:12,058 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:12,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:14:12,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:12,059 INFO L87 Difference]: Start difference. First operand 632 states and 775 transitions. Second operand 3 states. [2019-10-13 23:14:12,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:12,116 INFO L93 Difference]: Finished difference Result 1042 states and 1270 transitions. [2019-10-13 23:14:12,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:14:12,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-13 23:14:12,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:12,122 INFO L225 Difference]: With dead ends: 1042 [2019-10-13 23:14:12,122 INFO L226 Difference]: Without dead ends: 724 [2019-10-13 23:14:12,124 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:12,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2019-10-13 23:14:12,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 723. [2019-10-13 23:14:12,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2019-10-13 23:14:12,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 880 transitions. [2019-10-13 23:14:12,179 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 880 transitions. Word has length 189 [2019-10-13 23:14:12,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:12,182 INFO L462 AbstractCegarLoop]: Abstraction has 723 states and 880 transitions. [2019-10-13 23:14:12,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:14:12,182 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 880 transitions. [2019-10-13 23:14:12,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2019-10-13 23:14:12,190 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:12,190 INFO L380 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:12,190 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:12,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:12,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1089171071, now seen corresponding path program 1 times [2019-10-13 23:14:12,191 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:12,191 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015605018] [2019-10-13 23:14:12,191 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:12,192 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:12,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:12,809 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-10-13 23:14:12,810 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015605018] [2019-10-13 23:14:12,810 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:12,810 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 23:14:12,811 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363951161] [2019-10-13 23:14:12,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 23:14:12,812 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:12,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 23:14:12,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-10-13 23:14:12,813 INFO L87 Difference]: Start difference. First operand 723 states and 880 transitions. Second operand 16 states. [2019-10-13 23:14:19,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:19,627 INFO L93 Difference]: Finished difference Result 1722 states and 2087 transitions. [2019-10-13 23:14:19,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-13 23:14:19,628 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 304 [2019-10-13 23:14:19,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:19,639 INFO L225 Difference]: With dead ends: 1722 [2019-10-13 23:14:19,640 INFO L226 Difference]: Without dead ends: 1347 [2019-10-13 23:14:19,643 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2019-10-13 23:14:19,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2019-10-13 23:14:19,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1336. [2019-10-13 23:14:19,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2019-10-13 23:14:19,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1638 transitions. [2019-10-13 23:14:19,843 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1638 transitions. Word has length 304 [2019-10-13 23:14:19,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:19,846 INFO L462 AbstractCegarLoop]: Abstraction has 1336 states and 1638 transitions. [2019-10-13 23:14:19,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 23:14:19,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1638 transitions. [2019-10-13 23:14:19,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2019-10-13 23:14:19,855 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:19,856 INFO L380 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:19,856 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:19,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:19,856 INFO L82 PathProgramCache]: Analyzing trace with hash 2113196456, now seen corresponding path program 1 times [2019-10-13 23:14:19,857 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:19,857 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728953885] [2019-10-13 23:14:19,857 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:19,857 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:19,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:20,213 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 23:14:20,214 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728953885] [2019-10-13 23:14:20,215 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:20,216 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:14:20,216 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451826848] [2019-10-13 23:14:20,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:14:20,218 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:20,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:14:20,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:20,218 INFO L87 Difference]: Start difference. First operand 1336 states and 1638 transitions. Second operand 3 states. [2019-10-13 23:14:20,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:20,371 INFO L93 Difference]: Finished difference Result 3803 states and 4784 transitions. [2019-10-13 23:14:20,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:14:20,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 315 [2019-10-13 23:14:20,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:20,387 INFO L225 Difference]: With dead ends: 3803 [2019-10-13 23:14:20,388 INFO L226 Difference]: Without dead ends: 2508 [2019-10-13 23:14:20,393 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:20,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2019-10-13 23:14:20,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 2505. [2019-10-13 23:14:20,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2505 states. [2019-10-13 23:14:20,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3120 transitions. [2019-10-13 23:14:20,560 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3120 transitions. Word has length 315 [2019-10-13 23:14:20,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:20,561 INFO L462 AbstractCegarLoop]: Abstraction has 2505 states and 3120 transitions. [2019-10-13 23:14:20,561 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:14:20,561 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3120 transitions. [2019-10-13 23:14:20,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2019-10-13 23:14:20,573 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:20,574 INFO L380 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:20,574 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:20,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:20,574 INFO L82 PathProgramCache]: Analyzing trace with hash 365566248, now seen corresponding path program 1 times [2019-10-13 23:14:20,574 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:20,575 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77484818] [2019-10-13 23:14:20,575 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:20,575 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:20,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:20,870 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 23:14:20,871 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77484818] [2019-10-13 23:14:20,872 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:20,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:14:20,873 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022509054] [2019-10-13 23:14:20,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:14:20,874 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:20,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:14:20,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:20,875 INFO L87 Difference]: Start difference. First operand 2505 states and 3120 transitions. Second operand 3 states. [2019-10-13 23:14:21,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:21,236 INFO L93 Difference]: Finished difference Result 6057 states and 7742 transitions. [2019-10-13 23:14:21,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:14:21,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 317 [2019-10-13 23:14:21,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:21,261 INFO L225 Difference]: With dead ends: 6057 [2019-10-13 23:14:21,261 INFO L226 Difference]: Without dead ends: 3596 [2019-10-13 23:14:21,275 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:21,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3596 states. [2019-10-13 23:14:21,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3596 to 3593. [2019-10-13 23:14:21,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3593 states. [2019-10-13 23:14:21,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3593 states to 3593 states and 4477 transitions. [2019-10-13 23:14:21,511 INFO L78 Accepts]: Start accepts. Automaton has 3593 states and 4477 transitions. Word has length 317 [2019-10-13 23:14:21,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:21,511 INFO L462 AbstractCegarLoop]: Abstraction has 3593 states and 4477 transitions. [2019-10-13 23:14:21,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:14:21,512 INFO L276 IsEmpty]: Start isEmpty. Operand 3593 states and 4477 transitions. [2019-10-13 23:14:21,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2019-10-13 23:14:21,537 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:21,539 INFO L380 BasicCegarLoop]: trace histogram [8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:21,540 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:21,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:21,540 INFO L82 PathProgramCache]: Analyzing trace with hash 451580426, now seen corresponding path program 1 times [2019-10-13 23:14:21,541 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:21,541 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138842631] [2019-10-13 23:14:21,541 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:21,542 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:21,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:21,943 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2019-10-13 23:14:21,943 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138842631] [2019-10-13 23:14:21,944 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:21,944 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 23:14:21,944 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11201795] [2019-10-13 23:14:21,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:14:21,945 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:21,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:14:21,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:14:21,946 INFO L87 Difference]: Start difference. First operand 3593 states and 4477 transitions. Second operand 11 states. [2019-10-13 23:14:26,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:26,938 INFO L93 Difference]: Finished difference Result 6939 states and 8589 transitions. [2019-10-13 23:14:26,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 23:14:26,939 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 300 [2019-10-13 23:14:26,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:26,982 INFO L225 Difference]: With dead ends: 6939 [2019-10-13 23:14:26,982 INFO L226 Difference]: Without dead ends: 5100 [2019-10-13 23:14:26,990 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:14:26,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5100 states. [2019-10-13 23:14:27,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5100 to 5063. [2019-10-13 23:14:27,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5063 states. [2019-10-13 23:14:27,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5063 states to 5063 states and 6312 transitions. [2019-10-13 23:14:27,333 INFO L78 Accepts]: Start accepts. Automaton has 5063 states and 6312 transitions. Word has length 300 [2019-10-13 23:14:27,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:27,335 INFO L462 AbstractCegarLoop]: Abstraction has 5063 states and 6312 transitions. [2019-10-13 23:14:27,335 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:14:27,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5063 states and 6312 transitions. [2019-10-13 23:14:27,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2019-10-13 23:14:27,355 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:27,355 INFO L380 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:27,355 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:27,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:27,356 INFO L82 PathProgramCache]: Analyzing trace with hash 702539881, now seen corresponding path program 1 times [2019-10-13 23:14:27,356 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:27,357 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039142829] [2019-10-13 23:14:27,357 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:27,357 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:27,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:27,650 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-10-13 23:14:27,650 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039142829] [2019-10-13 23:14:27,651 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:27,651 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:14:27,651 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637863269] [2019-10-13 23:14:27,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:14:27,652 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:27,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:14:27,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:27,653 INFO L87 Difference]: Start difference. First operand 5063 states and 6312 transitions. Second operand 3 states. [2019-10-13 23:14:27,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:27,929 INFO L93 Difference]: Finished difference Result 10504 states and 13364 transitions. [2019-10-13 23:14:27,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:14:27,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2019-10-13 23:14:27,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:27,964 INFO L225 Difference]: With dead ends: 10504 [2019-10-13 23:14:27,964 INFO L226 Difference]: Without dead ends: 5675 [2019-10-13 23:14:27,978 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:27,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5675 states. [2019-10-13 23:14:28,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5675 to 5669. [2019-10-13 23:14:28,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5669 states. [2019-10-13 23:14:28,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7290 transitions. [2019-10-13 23:14:28,291 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7290 transitions. Word has length 325 [2019-10-13 23:14:28,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:28,292 INFO L462 AbstractCegarLoop]: Abstraction has 5669 states and 7290 transitions. [2019-10-13 23:14:28,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:14:28,293 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7290 transitions. [2019-10-13 23:14:28,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2019-10-13 23:14:28,316 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:28,316 INFO L380 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:28,317 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:28,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:28,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1525336780, now seen corresponding path program 1 times [2019-10-13 23:14:28,317 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:28,317 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644800596] [2019-10-13 23:14:28,318 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:28,318 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:28,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:28,571 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-10-13 23:14:28,571 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644800596] [2019-10-13 23:14:28,572 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:28,572 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:14:28,572 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563291459] [2019-10-13 23:14:28,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:14:28,573 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:28,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:14:28,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:28,574 INFO L87 Difference]: Start difference. First operand 5669 states and 7290 transitions. Second operand 3 states. [2019-10-13 23:14:28,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:28,816 INFO L93 Difference]: Finished difference Result 12274 states and 16238 transitions. [2019-10-13 23:14:28,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:14:28,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 326 [2019-10-13 23:14:28,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:28,869 INFO L225 Difference]: With dead ends: 12274 [2019-10-13 23:14:28,870 INFO L226 Difference]: Without dead ends: 6839 [2019-10-13 23:14:28,889 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:28,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2019-10-13 23:14:29,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 6833. [2019-10-13 23:14:29,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6833 states. [2019-10-13 23:14:29,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6833 states to 6833 states and 9174 transitions. [2019-10-13 23:14:29,375 INFO L78 Accepts]: Start accepts. Automaton has 6833 states and 9174 transitions. Word has length 326 [2019-10-13 23:14:29,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:29,375 INFO L462 AbstractCegarLoop]: Abstraction has 6833 states and 9174 transitions. [2019-10-13 23:14:29,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:14:29,376 INFO L276 IsEmpty]: Start isEmpty. Operand 6833 states and 9174 transitions. [2019-10-13 23:14:29,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2019-10-13 23:14:29,404 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:29,406 INFO L380 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:29,406 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:29,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:29,407 INFO L82 PathProgramCache]: Analyzing trace with hash -635371857, now seen corresponding path program 1 times [2019-10-13 23:14:29,407 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:29,407 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740241564] [2019-10-13 23:14:29,407 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:29,408 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:29,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:29,648 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-10-13 23:14:29,648 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740241564] [2019-10-13 23:14:29,649 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:29,649 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:14:29,649 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860300241] [2019-10-13 23:14:29,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:14:29,650 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:29,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:14:29,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:29,651 INFO L87 Difference]: Start difference. First operand 6833 states and 9174 transitions. Second operand 3 states. [2019-10-13 23:14:29,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:29,920 INFO L93 Difference]: Finished difference Result 15670 states and 21746 transitions. [2019-10-13 23:14:29,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:14:29,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 327 [2019-10-13 23:14:29,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:29,964 INFO L225 Difference]: With dead ends: 15670 [2019-10-13 23:14:29,964 INFO L226 Difference]: Without dead ends: 9071 [2019-10-13 23:14:29,988 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:29,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9071 states. [2019-10-13 23:14:31,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9071 to 9065. [2019-10-13 23:14:31,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9065 states. [2019-10-13 23:14:31,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9065 states to 9065 states and 12774 transitions. [2019-10-13 23:14:31,130 INFO L78 Accepts]: Start accepts. Automaton has 9065 states and 12774 transitions. Word has length 327 [2019-10-13 23:14:31,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:31,131 INFO L462 AbstractCegarLoop]: Abstraction has 9065 states and 12774 transitions. [2019-10-13 23:14:31,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:14:31,131 INFO L276 IsEmpty]: Start isEmpty. Operand 9065 states and 12774 transitions. [2019-10-13 23:14:31,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2019-10-13 23:14:31,167 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:31,168 INFO L380 BasicCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:14:31,169 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:31,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:31,169 INFO L82 PathProgramCache]: Analyzing trace with hash -206002042, now seen corresponding path program 1 times [2019-10-13 23:14:31,169 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:31,170 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149250499] [2019-10-13 23:14:31,171 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:31,171 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:31,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:31,389 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2019-10-13 23:14:31,390 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149250499] [2019-10-13 23:14:31,390 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:31,390 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:14:31,390 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862843030] [2019-10-13 23:14:31,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:14:31,391 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:31,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:14:31,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:31,392 INFO L87 Difference]: Start difference. First operand 9065 states and 12774 transitions. Second operand 3 states.